Step-ladder.



J. A. GLOUGH.

I STEP LADDER. AP PLIUATIOIT FILED JUNE 29, 1908.

' Patented June 1, 1909.

* Us rrn 1 s JOHN A. CLOUGH, OF SPRING VALLEY, WISCONSIN.

STEP-LADDER.

Specification of Letters Patent.

Patented June 1, 1909.

Application filed June 29, 1908. Serial No. M03794.

To all whom it may concern: I

Be it known that I, JOHN A. CLoUeI-i, a citizen of the United States, residing at Spring Valley, in the county of Pierce and State of Wisconsin, have invented certain new and useful Improvements in Step-Ladders, of which the followingis a specification.

My invention relates to improvements in step ladders, its object being particularly to provide improved means for supporting. the legs of a step ladder in adjusted positions.

To this end my invention consists in the features of construction and combination hereinafter particularly described and claimed.

In the accompanying drawings forming part of this'specification, Figure '1 is a perspective view of a step ladder'embodying my invention, Fig. 2 is a view of a portion of one of the supporting legs of the ladder showing one side oi a collar formingv part of my invention, Fig. 3 is a similar view of the inner side of the other leg showing the other side of the collar, Fig.4 is an end view of one of the legs, and Fig. 5 is a detail of a bent bar forming part of my invention. p

In the drawings A represents a step ladder of ordinary construction, the rear legs 8 bein 'formedalong their'inner sides with a plura 'ty of notches 2. I 1 I 0 represents a bail having hinge connec tion 3 with the front portion of the ladder and having pivotal support 4 in the rearwardly extending ears-5 of a pair of collars D slidableupon thelegs 3.1 The collars D are held in adjusted positions upon the legs by means of bent bars 6 slidable in guides 7 and 8 on the sides of the collars, each of said bars being held in indrawn position by a spring 9 connected at one end to the bar and at the other end with anear :10 carried by the collar. The spring 9 is centrally held by a notched catch 11 extendin outwardly from the adjacent side of the co lar. One side of the bar extends rearwardly beyond the collar to form a finger hold 12 to allow the bars to be pressed out of the receiving notches 2 when adjusting said collars upon the legs.

In operation the bent bars 6 will be held in corresponding notches 2 by the springs 9 holding the ladder legs in osition. When it is desired to adjust the la der legs the bent bars may be forced out of the notches and the collars adjusted upon the supporting legs to carry said legs to the desired position.

I claim:

i. In combination with the side standards and supporting legs of a step ladder, collars slidable upon said supporting legs, a bail hinged upon said side standards and having hinge connection with said collars, and spring held means carried by said collars and cooperating with said legs to hold said collars in adjusted positions thereon.

2. In combination with the side standards and supporting legs of a step ladder, said supporting legs being formed with a series of transverse notches, collars slidable u on said legs, a connection between said col ars and standards and a s rin pressed locking device carried by sai col ars in position to cooperate with said notches.

3. In combination with the side bars and supporting legs of a ladder, said supporting legs being formed with transverse notches, of collars slidable u on said legs, a connec tion between said co lars and standards, and spring ressed bars slidably supported upon said co ars in position to cooperate with said notches.

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN A. OLOUGH.

Witnesses:

B. H. CANTsELL, ISAAC ISAACSON. 

